FIELD: communication equipment.
SUBSTANCE: use: radiators of electromagnetic waves in the ionosphere. Virtual antenna includes an extended section of the ionosphere, commensurate with the VLF wavelength along the magnetic field lines of the Earth, alternate synchronous excitation of section ends is carried out by radio pulses of transmitters from two points of the Earth, channeling the radiation of the transmitters into the ionosphere layer by selecting the excitation frequency below the critical one and the angle of inclination of the antenna patterns of the transmitters, control of current density in virtual antenna by means of rated power of transmitters and coefficient of directional action of their antennas.
EFFECT: globality of action, stealthiness and inaccessibility for counteraction.
1 cl, 5 dwg
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